Platform-scale.



P. E. GRADY & F. H. ROBILLARD.

PLATFORM SCALE.

APPLICATION FILED MAR. l8. T916. 1,265,618. Patented May 7,1918.

2 SHEETSSHEET I- l l'l l l l l l'l I'I UNITED STATES- PATENT oF IoE.

PETER E. GRADY AND FRANK'H. ROBILLARFD, OF BURLINGTON, VERMONT. v

PLATFORM-SCAL E.

Specification of LettersPatent.

Patented May 7, 1918.

Application filed March 18, 1916. Serial No. 85,221.

To all whom it may concern:

Be it known that we, PETER E. GRADY and FRANK H. ROBILLARD, citizens ofthe United States, residing at Burlington, in the county of Chittendenand State of Vermont, have invented new and useful Improvements inPlatform-Scales, of which the following is a specification.

This invention relates to improvements in platform scales, and theobject of the invention is to construct a scale primarily adapted forweighing liquids and which is provided with an outlet spoutconnectedwith the liquid supply and which has means actuated by the balancing ofthe beam for permitting the closing of the controlling valve of the pipemember for said spout when a determined quantity of liquid has beendrawn through the spout.

With the above and other objects in view, the improvement resides in theconstruction, combination and arrangement of parts set forth in thefollowing specification and fallin within the scope of the appendedclaim.

11 the drawings:

Figure 1 is a front elevation of a scale constructed in accordance withthe present invention, parts being in section,

Fig. 2 is a vertical longitudinal sectional view taken in a line withthe standard and with the beam of the scale,

Fig. 3 is a transverse sectional view approximately on the line 33 ofFig. 2,

Fig. 4 is a sectional view approximately on the line i4 of Fig. 2, and

Fig. 5 is a diagrammatic View of the electric circuits.

Referring now to the drawings in detail, the numeral 1 designates thebase or shell of a scale having the usual pillar 2 provided with theangularly disposed cap 3. On the cap is arranged the verticallyextending hanger 4 for the beam 5. The beam is, of course, pivoted tothe hanger and has one of its ends provided with the usual rounded neck6 which carries the rod that has its end flanged and upon which reststhe slotted weights. The cap 3 has arranged thereon, but insulatedtherefrom, a vertically disposed slotted guide arm 7 for the neck of thebeam, and the beam is connected by the usual rod 8 to the platform 9 ofthe scale. The guide is of electric conducting material, as is the scalebeam, and arranged in the slot of the guide member 7 is a sheet ofinsulated material 7 designed to engage with the goose neck 6 of thebeam, when the beam is in its lowered position, the opposite or upperwall provided by the slot being free from such insulation.

Arranged upon the base or shell 1 of the scale, in a line with thepillar 2 thereof is a housing or casing 10 which preferably has its openfront closed by a door 11. The housing preferably comprises asubstantially rectangular box-like member and arranged vertically withrespect to the scale and disposed tothe opposite sides of the housingare pipe members 12 which pass through the shell of the scale'andthrough the floor upon which the scale is supported. These pipe membersmay be provided with flexible hose having couplers thereon whereby eachof said pipes may be connected with the bung or outlet of a barrel orother container of charged liquids. The pipes 12 are provided withangular extensions which enter the housing as indicated by the numerals13, and the said pipes are centrally connected by an outwardly extendingoutlet pipe l i that has its end provided with a downturned nozzle 15.The nozzle is preferably arranged above the center of the platform 9 ofthe scale, and the pipe member or members 13, to theoppositesides of theoutlet pipe 14 have check valves 16 which will prevent'any liquid in theoutlet pipe reflowing through the pipes said valves having an operatinghandle 18,

and these handles are each under the influence of a spring 18 wherebythe same are normally swung to close the valves.

Arranged within the housing 10 are suitable electro-magnet-s which arearranged in pairs, the respective pairs being designated by'the numerals20 and 21. The numeral 22 designates the armature for the cores of themagnets 20, and the numeral 23 designates .the armature for the magnets21. Each of these armatures, 22 and 23, is provided at its end, with anoffset portion forming a catch 24:. These catch members project throughopenings in the sides of the housing and engage with the handles 18 ofthe valves 17 when the same are swung to approximately a horizontalposition, against the pressure or tension of their springs to open thesaid valves 17 If desired each of the armatures may be under theinfluence of suitable weak springs to permit of the same normallyswinging to bring their offset ends to engage with the handles of thevalves, or the said armatures being constructed of spring material maybe so moved without the aid of additional springs. The ends of thehandles 18 are beveled, and the ends of the catch members 24 are alsobeveled, but in an opposite direction from that of the handle, so thatthe said handles may be swung below and into engagement with the catcheswithout injury to the said catches, Each of the armatures oppositethecatch thereof, has arranged thereon a striker arm 25, disposed tocontact with an alarm, such as a bell 26, when the armatures areattracted by the magnets and the catch members thereof are brought outof engagement with the handles 18 to permit of the springs 19 closingthe valve 17. The numeral 27 designates a contact member which isarranged upon a guard arm 7 and is disposed above the neck of the beam 5when the said beam is in its normal horizontal position, but which isarranged to be contacted by the said neck when the beam is tilted whenthe weight of the platform equalizes the poises on the beam and theweights arranged upon the neck of the beam. This contact member 27 is inelectric circuit with the magnets 20 and 21 as well as with a battery28, the return wire of the circuit from the battery being grounded onthe scale. I

The platform 9 is provided with an out-' be retained practically dry.

The operation of the device may be briefly described as follows: When avessel is arranged on the platform below the nozzle, the poise of thebeam is arranged to compensate for the weight of the vessel. Weightsdetermining the required quantity of fluid to be received in the vesselare arranged upon the neck of the beam and thereafter the handles 18 areturned to open the valves 17, the said handles being engaged Copies ofthis patent may be obtained for 17 and also causing the striker arms 25to contact with the bells 26, thus giving an audible alarm to the clerknotifying him that the proper amount of liquid has been drawn and alsobreaking the circuit.

From the above description, taken in connection with the accompanyingdrawings, the simplicity of the device as well as the advantages thereofwill, it is thought, be perfectly apparent to those skilled in the artto which such invention appertains without further detailed description.

Having thus described the invention what we claim is The hereindescribedconstruction of scales for weighing liquids, including a platform and apivoted beamconnected therewith, a liquid supply pipe to the rear of theplatform and having an-outlet nozzle arranged over the platform, aspring influenced valve for the pipe and a handle for said valve, acatch engaging with the handle to hold the valve in one position, anelectric magnet, a spring armature for the magnet connected with-thecatch, a slotted guide for the scale beam of electric conductingmaterial, insulated from the remainder of the scale and from the beam,when the beam is in one position but in the path of contact with thesaid beam when the beam is in another position, and. said guide being inelectric circuit with a battery, the magnet, and the beam.

In testimony whereof we afiix our signature in presence of twowitnesses.

PETER E. GRADY. FRANK H. ROBILLARD. Witnesses:

A. S. DREW, JOHN HEBERT.

five cents each, by addressing the Gommissioner of Patents,

Washington, I). C.

